Flow Switches of 2025

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Last Updated - May 11, 2025

Best Choice

1

Dwyer
Dwyer Flotect Series V10 Mini-Size Flow Switch, Brass Housing, Normally Open or Closed, Pressure Range 0-1000 psig, 1/2'' Male NPT
Main highlights

Weatherproof
Proof of Flow or No Flow in 1/2" to 2" Pipe
Low Cost
Leak Proof Body
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9.8

Exceptional

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Value for Money

2

RJSPHH
GNR00003 Salt Cell Systems Flow Switch with Round Connector Compatible with Saltron Reliant Saltwater Chlorine Generator
Main highlights

Replace Number: GNR00003
Plumbing Connection Size: 3/4″
One Year Warranty for it. If you have any problem ,please contact us and we will respond you on 24 hours
Flow switch with Round Connector
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9.7

Exceptional

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3

Optimum Pool Technologies
Flow Switch Assembly Kit Without Tee Compatible Replacement for Hayward® Salt Chlorine Generators

9.3 Easy installation

8.0 worth the money

8.0 Long life

Why we love it

Compatible Hayward/Goldline.

15ft cord.

Arrow indicates direction.
Main highlights

Key Features
Compatible with major Hayward/Goldline systems, features a 15-foot cord, and easy installation with directional arrow. Built for durability by Optimum Pool Technologies.

Ideal Use Cases
Perfect for replacing Hayward/Goldline flow switches in Aqua Rite, Aqua Logic, Swim Pure Plus, and Pro Logic saline generating systems.

Customer Praise
Most reviews highlight its perfect fit and easy installation as the top praised features, enhancing pool maintenance efficiency.
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9.6

Exceptional

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4

Cooouds
GLX-FLO-RP Flow Switch Assembly Compatible with Goldline Aquarite Salt Systems, Pool Flow Sensor for Aqua Rite Swimming Pool Salt Cell and Chlorine Generator, 15 Feet Cable Pool Flow Switch

9.9 Easy installation

9.1 worth the money

8.0 Long life
Main highlights

Widely applicable: The flow switch GLX-FLO-RP suitable for Goldline Aquarite salt cell and chlorine generator systems. Our GLX-FLO-RP can be compatibled with all goldline series & Aquarite series. Like :Aqua Rite, Aqua Rite Pro, Pro Logic, Aqua Logic, Aqua Plus, Aqua Rite XL, Mineral Springs Mineral Springs MS10/MS11,H40, SwimPurePlus, SplashCLEAR, SmartPure, Splash SP-40, OmniLogic, Omni Hub, OnCommand...List some but not all
Replacement Parts : GLX-FLO-RP flow switch can compatible with all Goldline & Aqua Rite salt systems, GLX-FLO-RP flow switch replacement can be used with Goldline Aquarite salt chlorination turbo cell. The part GLX-FLO-RP assembly replaces GLXFLORP, GLX-FLO-HP, OPT-F/S. Although the model name is different. They are universal
Product Information: The GLX-FLO-RP flow switch uses standard 1/2'' threads and our part GLXFLORP flow sensor assembly with 15-Foot Cable. One end is a standard Phone Jack connection and can easily plug in the control panel of your pool salt chlorinator system, meanwhile the water flow sensor GLX-FLO-RP has a circle gasket and a round of tape. Both of them can ensure better sealing
Not only"GLX-FLO-RP": We believe that our GLX-FLO-RP swimming pool flow switch can help you better enjoy the swimming pool in summer. At the same time, We offer 2 year Warranty of our pool flow switch
Automatic Protection: The pool water flow switch can monitor the water flow in real time.If no water flow is detected, it will automatically shut down the salt system to prevent the salt cell from being damaged.Flow sensor GLX-FLO-RP can fix "NO FLOW" situation and it's easy to install. Just insert the two ends of the flow switch with cable into the correspondingly correct positions. Unplug existing (old) flow sensor, wrap enough tape and screw the switch into Run pump, don't overtighten it
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9.5

Excellent

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5

General Pump
General Pump 100975 Flow Switch, 12.0 GPM, 5000 psi
Main highlights

Resistance with Leads: 30 OHM
Mechanical Service Life: 10,000,000 Cycles
Max Switching Current: 5 AMPS
Max Switch Voltage: 250 VAC
Electrical Service Life: 200,000 Cycles
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9.3

Excellent

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6

DIGITEN
DIGITEN FS-C02 G3/4" BSP Male Thread Brass Water Flow Switch 1-30L/min, 0-2A/ 0-220V(AC or DC)

9.3 Easy installation

8.7 Precision

8.0 Durability

Why we love it

Safe and reliable, meets ROHS standards.

Easy to install, waterproof and heat resistant.

Versatile, suitable for various applications.
Main highlights

Safety and Reliability
The flow sensor switch is made of brass, meeting ROHS standards, and shuts off current to heaters and pumps when no water flow is detected.

Ideal Use Cases
Perfect for water heaters, pumps, hot tubs, boilers, coffee machines, steam equipment, water systems, cooling systems, and pharmaceutical equipment.

Praised Feature
Customers appreciate the sensor's responsiveness and accuracy, especially in applications requiring precise water flow detection and safety mechanisms.
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9.1

Excellent

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7

YWBL-WH
HFS-25 1"/DN25 SPDT Contacts Water Switch, Liquid Water Paddle Control Switch 6-380V

9.7 materials Quality

9.3 Durability

8.0 Easy installation

Why we love it

Automatically controls fluid flow for safety and efficiency.

Durable stainless steel construction ensures long-lasting use.

Versatile for various fluid types and applications.
Main highlights

Automatic Circuit Control
When the flow exceeds the set value, the fluid drives the blade and the microswitch, connecting and disconnecting circuits automatically.

Ideal for Water Treatment Systems
Suitable for water treatment, central air conditioning, water cooling units, fire protection systems, and other fluid dynamic measurement applications.

Sturdy Stainless Steel Build
Customers praised its sturdy construction and high-quality stainless steel material, ensuring long service life and reliability.
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8.9

Very Good

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8

Niiyen
PDT R3/4 HFS-20 Target Flow Controller, Automatic Paddle Type Water Flow Switch, 15A 250V IP54
Main highlights

[WIDELY]: This flow switch is an automatic element that controls flow in pipes, which can be used on water treatment system, central air-conditioning, water cooled chiller and relative industries. R3/4 water flow switch is applicable for fluid includes water, oil or other liquid not classified as hazardous or corrosive and air
[OUTPUT FORM]: flow sensor switch automatic output form is micro switch SPDT output, Micro Switch is 15A(max.), 250VAC/DC. HFS-20 water flow sensor switch has the feature that easy to use, high precision, reliable and stable
[MATERIAL]: Paddle flow switch is not easy to rust and wear,the R3/4 threaded joint is made of brass, and the shell is made of ABS plastic, can be used for a long time
[LEVEL]: Water flow sensor protection grade is IP54; the contactor life is up to 100,000 times, fluid Temperature is 1℃~100℃/ 33.8℉~212℉, max. Pressure is 10bar. Please note the flowswitch can not be used when fluid temperature drops below freezing point
[ADJUSTABLE]: R3/4 flow sensor control value is adjustable, repeat action point is stable. When flow rate exceeds set value, fluid drives blade and micro switch, the SPDT contact can connect a circuit and disconnect other circuit
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8.7

Very Good

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9

XMK
XMK Flow Switch Replacement for Q-12DS-C2, Flow Switch for Sundance Spas, Jacuzzi Hot Tub and Sweetwater Spas, Replace Part# 2560-040

9.1 Easy installation

9.1 worth the money
Main highlights

Notice: Flow switch cable with curled finger connectors, do not use on models such as 800,850, 800 series that use a square finger connection.
Function: Spa flow switch helps clear error messages FL1 and FL2, you can soaking in the hot tub again!
For Sweetwater and Jacuzzi Hot Tub Models: All 2003-2004 Sweetwater Models, such as Palermo Bahia, Cayman / 2015+ J-500 Series / 09/2015+ J-400 Series / 2016+ J-300 Convertible Models / 02/2020+ J-300 Models / 10/2020+ J-200/J-100 Models / 2002-2003 J-320, J-330, and J-340 Models / 2004+ J-335,J-345 / 2007+ J-355,J-365, J-375 Models / 2007+ J-230, J-270, and J-280 Models with the Circulation Pump Option / 2002-2015 J-300 LED Series (With Curled Finger Connectors) / 2011+ JLX, JLXL models
For Sundance Spas Models: 09/2020+ 680 Series / 03/2020+ 780 Series, 04/2017+ 780 Dover / 10/2016+ 980 Series: Kingston, Claremont / 2016+ 880 Series: Maxxus, Aspen, Optima, Cameo, Altamar, Marin, Capri / 2013-03/2017 780 Montclair / 2011+ Select Series: Constance, Victoria / 2008-03/2017 780 Series: Camden, Certa, Chelsee, Hamilton, Hamilton (circ pump) / Hartford (circ pump), Burlington (circ pump) / 2007-2012 680 Hartford, Hawthorne Models equipped with a Circ Pump / 2007 Hamilton, Chelsee...
Flow Switch Tee: Flow switch with clear housing tee allows for easy viewing of debris in flow switch and if it working properly. 3/4 inch barb and 3/8 inch barb off the side.
Compatibility: Replace part number 2560-040, Q12DS-C2. The flow switch compatible with Sweetwater, Jacuzzi, Sundance spas hot tub. Please check the compatible model in the Product Description.
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8.6

Very Good

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10

KILILOGE
100975 Flow Switch for Pressure Washer, Flow Switch Fit for General Pump, 12.0 GPM, 5000 PSI, Mounts in Any Position
Main highlights

Versatile Application: Operates in any mounting position without restriction and handles pressures up to 5,000 PSI, making it suitable for a wide range of industrial applications.
Optimized Design: Features a stainless steel shuttle for improved reliability and corrosion resistance, operating stably within a broad temperature range (40 - 180 ºF), and constructed from brass, stainless steel, plastic, and nickel-plated neodymium for long-term stability and easy maintenance.
High Flow Range: Requires a minimum flow of only 1.25 GPM and supports a maximum operating flow of 12.0 GPM, ensuring efficient fluid handling with minimal pressure drop.
Easy Installation and Maintenance: Includes 48-inch long 18AWG electrical leads. Comes with detailed installation instructions, straightforward installation.
Durable Construction: Utilizes micro-switch technology for enhanced durability, with an electrical service life of up to 200,000 cycles and mechanical service life of 10,000,000 cycles, suitable for long-term and high-frequency use.
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8.5

Good

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Flow Switches of 2025

1

Dwyer Flotect Series V10 Mini-Size Flow Switch, Brass Housing, Normally Open or Closed, Pressure Range 0-1000 psig, 1/2'' Male NPT

2

GNR00003 Salt Cell Systems Flow Switch with Round Connector Compatible with Saltron Reliant Saltwater Chlorine Generator

3

Flow Switch Assembly Kit Without Tee Compatible Replacement for Hayward® Salt Chlorine Generators

Why we love it

4

GLX-FLO-RP Flow Switch Assembly Compatible with Goldline Aquarite Salt Systems, Pool Flow Sensor for Aqua Rite Swimming Pool Salt Cell and Chlorine Generator, 15 Feet Cable Pool Flow Switch

5

General Pump 100975 Flow Switch, 12.0 GPM, 5000 psi

6

DIGITEN FS-C02 G3/4" BSP Male Thread Brass Water Flow Switch 1-30L/min, 0-2A/ 0-220V(AC or DC)

Why we love it

7

HFS-25 1"/DN25 SPDT Contacts Water Switch, Liquid Water Paddle Control Switch 6-380V

Why we love it

8

PDT R3/4 HFS-20 Target Flow Controller, Automatic Paddle Type Water Flow Switch, 15A 250V IP54

9

XMK Flow Switch Replacement for Q-12DS-C2, Flow Switch for Sundance Spas, Jacuzzi Hot Tub and Sweetwater Spas, Replace Part# 2560-040

10

100975 Flow Switch for Pressure Washer, Flow Switch Fit for General Pump, 12.0 GPM, 5000 PSI, Mounts in Any Position

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